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1·Fossilized remains of Acanthostega, a primitive fish, reveal that even though the animal had rudimentary limbs, it could not walk on land.

棘螈是一种原始鱼类，它的化石遗迹显示，尽管棘螈有基本的四肢，但它却不能在陆地上行走。

2·He received rudimentary village schooling, but mostly he roamed his uncle's farm collecting the fossils that were so abundant in the rocks of the Cotswold hills.

他只在乡村学校接受了最基本的教育，但大部分时间都在叔叔的农场里游荡，收集科茨沃尔德丘陵中充裕的化石。

3·Some dinosaurs had only rudimentary teeth.

有些恐龙只有未充分长成的牙齿。《牛津词典》

4·He had only a rudimentary knowledge of French.

他只有最基本的法语知识。《柯林斯英汉双解大词典》

5·They were given only rudimentary training in the job.

他们仅仅受到过基本的职业训练。《牛津词典》

6·The earth surface of the courtyard extended into a kind of rudimentary kitchen.

院子的泥土地面延伸进一间类似简易厨房的地方。《柯林斯英汉双解大词典》

7·These early versions were rudimentary, inaccurate, and prone to breakdown.

这些早期版本是初级的，不精确的，并且容易出故障。

8·Even rudimentary feathers on forelimbs could have expanded the arm's surface area to enhance lift slightly.

即使是前肢发育不全的羽毛也能扩大手臂的表面积，以略微提高升力。

9·In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going.

在这个原始的自然社会里，男人出去打猎、捕鱼、击退隔壁部落，而女人则继续生火。

10·In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.

在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。

(1)rudimentary knowledge基础知识；初步知识